... protection and overload protection.8 Leading heat sink design, four light emission instead of backlight emission. 9 Special circuit design, ... conventional light13 No need for starter and ballast, instant soft-start, no speckle, no flickering, no humming, no buzzing, ... RF interference14 Even illumination, quiet, soft, comfortable and bright light, ease eye strain effectively. 15 Long life-span: 30,000 ...